[PInternet]

Put yourself in Deana's shoes for a second:

1: Luke S, earlier in the season, repeatedly calls Deana a gameplayer and makes Deana out to seem a money-grubber while he himself is morally superior.
2: In front of the eyes of the housemates and the public, Luke S cries after he realizes that his greed has gotten the better of him and he has pressed the button too late.
3: Luke S comes out of the white room visibly upset and then after a while gets back on his high horse and says that he didn't press the button on purpose and that he doesn't care about the money and again he is morally superior.
4: Deana knocks him off his high horse, partly in retaliation for earlier comments and partly because Luke S is being fake as all hell and he comes crashing down hard. Deana feels bad for doing this and apologizes to him the next morning.
5: Deana focuses on the positive side of the white room task (for Luke S) and calls him Charlie with the golden ticket. Luke S decides to react to this with hostility as he's realized sympathy will get him more votes.